102355447 has 2 divisors, whose sum is σ = 102355448. Its totient is φ = 102355446.

The previous prime is 102355433. The next prime is 102355457. The reversal of 102355447 is 744553201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102355447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102355457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51177723 + 51177724.

It is an arithmetic number, because the mean of its divisors is an integer number (51177724).

Almost surely, 2^102355447 is an apocalyptic number.

102355447 is a deficient number, since it is larger than the sum of its proper divisors (1).

102355447 is an equidigital number, since it uses as much as digits as its factorization.

102355447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 102355447 is about 10117.0868830904. The cubic root of 102355447 is about 467.7749773534.

The spelling of 102355447 in words is "one hundred two million, three hundred fifty-five thousand, four hundred forty-seven".